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8 incredible images of Saturn

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Photo 6 of 9

Photo: NASA/JPL/GSFC/SWRI/SSI

6 of 9

Bizarre temperatures on moon Mimas

One of Saturn's small inner moons, Mimas or Saturn I, was discovered in 1789 by astronomer William Herschel. Named after one of the Titans in Greek mythology, it exhibits a bizarre pattern of daytime temperatures. As Cassini illustrates, it has a distinct warm side on the left, as well as a sharply cold side on the right. There is an unexplained V-shaped boundary in between.

Bizarre temperatures on moon Mimas

One of Saturn's small inner moons, Mimas or Saturn I, was discovered in 1789 by astronomer William Herschel. Named after one of the Titans in Greek mythology, it exhibits a bizarre pattern of daytime temperatures. As Cassini illustrates, it has a distinct warm side on the left, as well as a sharply cold side on the right. There is an unexplained V-shaped boundary in between.